Finding the Third Proportional to 11,221.50 and 24,688.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,221.50 : 24,688.50 = 24,688.50 : x
2. Step 2: Convert to fraction form
   11,221.50/24,688.50 = 24,688.50/x
3. Step 3: Cross multiply
   11,221.50x = 24,688.50 × 24,688.50
4. Step 4: Simplify right side
   11,221.50x = 609,522,032.25
5. Step 5: Solve for x
   x = 609,522,032.25/11,221.50
6. Step 6: Final answer
   x = 54,317.34